<!DOCTYPE html>
<html lang="zh">

	<head>
		<meta charset="UTF-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
		<meta http-equiv="X-UA-Compatible" content="ie=edge" />
		<title>app复制input的value</title>
	</head>

	<body>
		<form action="">
			<input type="text" class="share-input" value="http://www.baidu.com" id="copy-content" />
			<button class="copy-button" type="button" onclick="copyContent();"> 复制 </button>
		</form>
		<script type="text/javascript">
			/*Copy function implementation */
			function copyContent() {
				var copyobject = document.getElementById("copy-content");
				copyobject.select();
				document.execCommand("Copy");
				alert("已复制成功哦~");
			};
		</script>
	</body>

</html>